11864013 has 16 divisors (see below), whose sum is σ = 18568320. Its totient is φ = 6595776.

The previous prime is 11864003. The next prime is 11864023. The reversal of 11864013 is 31046811.

It is an interprime number because it is at equal distance from previous prime (11864003) and next prime (11864023).

It is not a de Polignac number, because 11864013 - 2⁵ = 11863981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11864003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6858 + ... + 8411.

It is an arithmetic number, because the mean of its divisors is an integer number (1160520).

Almost surely, 2^11864013 is an apocalyptic number.

It is an amenable number.

11864013 is a deficient number, since it is larger than the sum of its proper divisors (6704307).

11864013 is a wasteful number, since it uses less digits than its factorization.

11864013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15316.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 11864013 is about 3444.4176576019. The cubic root of 11864013 is about 228.0747484985.

The spelling of 11864013 in words is "eleven million, eight hundred sixty-four thousand, thirteen".